People : Marcella Kopp to Monroe Kopp
Marcia Kopp 2 people
Margaret Kopp 12 people
Maria Kopp 3 people
Marian Kopp 3 people
Marie Kopp 2 people
Marilyn Kopp 5 people
Marissa Kopp 2 people
Marjorie Kopp 5 people
Mark Kopp 12 people
Marlene Kopp 4 people
Martha Kopp 2 people
Martin Kopp 7 people
Marvin Kopp 5 people
Mary Kopp 22 people
Maryann Kopp 2 people
Matthew Kopp 21 people
Max Kopp 2 people
Megan Kopp 2 people
Meghan Kopp 2 people
Melinda Kopp 3 people
Melissa Kopp 8 people
Melvin Kopp 2 people
Michael Kopp 39 people
Michele Kopp 4 people
Michelle Kopp 12 people
Mike Kopp 4 people
Misty Kopp 2 people
Monica Kopp 3 people